Amazon interview experience Real time questions & tips from candidates to crack your interview
Support Engineer - Intern
Amazon
1 rounds | 1 Coding
problems
Selected Interview preparation journey
Journey
I took admission in tier 3 college for B.Tech in Computer Science. Firstly I planned that I will start learning DSA from the first year but I could not. So, I started DSA from the fourth semester and along with DSA, I also learned development because that is what I wanted to be. By the end of Third year, I was confident in both DSA and development but even then I keep on revising the concepts.
Application story
I got a message in my Whatsapp group about the company visiting our campus for the hiring of Support Engineer - Intern. I started preparing accordingly and got selected at last.
Why selected/rejected for the role?
I was giving correct explanation for my solutions in the coding round. I also built the optimal solution starting from the brute force algorithm which also added to my points
Preparation
Duration: 3 Months
Topics: Data Structures, OOPs, Operating System, DBMS, Computer Network, Algorithms, Arrays, Strings, Linked List, Trees
Tip 1 : Keep your programming fundamentals strong
Tip 2 : Prepare OOPs very well
Tip 3 : Learn about UNIX commands
Tip 4 : Do at-least 2 good projects
Application process
Where: Campus
Eligibility: 6 CGPA
Tip 1 : Have good projects on resume
Tip 2 : Keep a thorough knowledge of everything you have written in resume
Tip 3 : Only put the skills in which you are confident
Tip 4 : Resume should be of single page
Interview rounds
01
Round
Medium
Online Coding Interview
Duration90 minutes
Interview date10 Sep 2021
Coding problem1
The Online MCQ + Coding Round was in the afternoon at 1 PM.
The exam was on Mettl Platform.
There were 9 sections.
8 section of MCQ each having 5 questions.
1 coding question.
MCQ Description -
Data Structures (5 questions)
Algorithms (5 questions)
Linux (5 questions)
Pseudo Codes (5 questions)
Networking (5 questions)
Software Testing Methodologies (5 questions)
Software Testing Concepts (5 questions)
Database Query Language (5 questions)
The MCQs were of medium to high level
1. Furthest Building You Can Reach
Moderate
10m average time
90% success
0/80
Asked in companies
Ninja is in the mood for a walk over the city, but being a ninja he prefers jumping over building roofs instead of walking through the streets.
The height of the buildings in his city can be represented through an array ‘HEIGHTS’ where ‘HEIGHT[i]’ is the height of the ith building. Ninja starts his journey from the 1st building and in one step can only travel to the roof of the next building.
While traveling from the ‘i’th to (i+1)th building:
1. If the ith building has a height greater than or equal to the next i.e (i+1)th building then he simply jumps to the next building.
2. Otherwise he uses either {‘HEIGHTS[i+1] -‘HEIGHTS[i]} bricks or just 1 ladder to climb up to the next building.
Having a limited number of bricks say ‘BRICKS’ and a limited number of ladders say ‘LADDERS’ in his Ninja pocket, he wants to know which is the farthest building he can travel up to if he uses the bricks and ladders optimally.
As Ninja is weak in mathematics so he asks for your help, can you help Ninja to find the maximum index of the building he can reach up to(1 based indexing)?
Here's your problem of the day 
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Skill covered: Programming
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